Alarm-clock.



C. W. COOK.

ALARM CLOCK.

APPLIGATION FILED PEBJS, 1914.

1,120,,Q39. Patented Dec. 8, 1914,

cnns'rnn w. 0001:, or saodus, MASSACHUSETTS.

' ALARM-CLOCK.

Specification ot 'l'ietters Patent.

Patented Dec. 8, 1914.

" Application flled February is, 914. Serial No. 818,594.

To all whom it ma concern:

Be it known t at I, CHESTER Coo a citizen of the United States, residing in Saugus, in the county of Essex and State of Massachusetts, have invented an Improvement in Alarm-Clocks, of, which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts. Y This invention relates to'an alarm clock and has for its object to provide the same with meansfor manually interrupting the alarm and for automatically releasing the alarm within a specified time as for instance an hour. and at a length of time after the alarm has been stopped, which may. and preferably will be'determined by the operator or person who sets the alarm.

The invention may be embodied in an alarm clock of ordinary. construction and so screws 13,14 for guiding the bar in its movement and for limiting the movement of the can be applied thereto at a minimum cost. Y

The particular features of the invent on will be pointed out in the claims at the end of this specification. Figure 1 is a rear elevation of one form of alarm clock embodying the invention,w1th part of the rear casing broken away, the stop mechanism being shown 1n 1ts operative position. Fig. 2, a similar View. showing the sto mechanism in its inoperative osltlon an Figs. 3 and 4, details of the adplstable release mechanism to be referredto.

, Referring to the drawing (1 represents an alarm clock of known construction, which has an oscillating crank, lever .or arm I) attached to or formin part of the alarm mechanism of the cloc which is not shown but is of well known construction. The crank or arm I) is oscillated in a manner well understood when the alarm mechanism is set ofi by the clock at any or selected time. v

In accordance with this invention, propredetermined vision is made for stopping the alarm at the will of the operator, and for this purpose the back wall 0 of the clock case has attached to it a manually operated stopmechanism, which is hereinshown as sliding bar 10 provided with a slot 12, through which extend bar in opposite directions.

The slide bar. 10 has extended from its 'ifpper end a curved arm 15 provided at its end with an'enlargement or head 16, having an inclined surface 17, which is movable into and out of the path of movement of the arm I) and which isguided. in its movement as herein shown, by a screw 18. extended through a slot 19 in said head. The slide bar- 10 may and preferabl .willbe provided with a stud or pin 20, which extends from it and is of sufficient length to extend through the rear casing 21,- so as to be accessible tothe operator, and by means of which the operator can depress the slide bar 10 and bring the head 16 into the path of movement of the arm I) as shown in Fig. 1,. and thereby stop the same and interrupt the ringing of the alarm or hell, which in the clock herein shown is the annular rim or flange 22 on the rear casing 21. The operator, who is the person awakened by the alarm, may desire to remain in bed for a limited time after the alarm has one off, and yet is desirous that he should e awakened at the expiration of the limited period of time, in case he or she should fall off to sleep. For this purpose, I have provided means for releasing the alarm mechanism from the influence of thestop mechanism, so as to permit the alarm mechanism to resume its operation and sound the alarm.

The release mechanism may and preferably will be made adjustable so as to become active at different portions of a predetermined period oftime, whereby the sleeper or operator is permitted to select how long a portion of the predetermined length of time the alarm will remain inactive. In the present instance the predetermined length of time the alarm can remain inactive and then become active, is one hour, and provision ismade whereby the alarm again becomes act1ve at any portion of one hour at the will of the operator., In the present instance, I

have shown one construction for accomplishing this result, and to this end, I have provided a sleeve 25, see Figs. 3 and 4, which is mounted ona spindle 26 secured to or forming part of the minute arbor 27 of the clock, said sleeve being longitudinally movable and rotatable on said spindle, and provided with a lug or car 28, which 'coiiperates with a laterally extended arm 29 on the slide bar 10 to efiect movement of said bar from its operativeor active position shown in Fig. 1 into its inoperative or non-active position shown in Fig. 2. In order that the release mechanism'may be applied to clocks now in us e, the spindle 26 is made detachable'from v the minute arbor 27 and is provided at its which is capable of.

end with a socket 30, being slipped over the end of the minute arbor 27, and whose walls are provided with longitudinal slits 31 to formclamping fin- .gers, which are adapted to be moved toward each other so as to firmly grip the minute arbor, by the sleeve 25, when the latter is movedlongitudinally on the spindle to engage the said sleeve with thesplit walls of the socket 30, as shown in Figs. 3 and 4, and,

when the sleeve is in this position, which may be termed its operative position, the

said sleeve is frictionally secured to the spin-51 dle 26 'to revolve therewith, and the said spindle is clamped to the minute arbor 27 to revolve therewith."

The portion of the spindle at therear of the split socket may be made of smaller diameterthan the sleeve 25 so that, when the said sleeve is moved back out. of engagement with the split socket, it can be turned on the the minute hand of the clock, with which spindle' to adjust the lug 28 with relation to a mark on the spindle, herein' shown as an arrow to on the head 41 of the spindle,

so as to adjust the lug 28- with relation to the arrow. 40 registers or is in the same what portion of and moves the {alarm a second time. operator desired to remain in bed any other plane. After the lug 28 has been adjusted with relation to the arrow, according to one hour the person desiresto remain in bed after the alarm has been sounded in the first instance and before the alarm is sounded in the second, instance,.

the sleeve 25 is slipped over the walls of the split socket 30, and the sleeve is frictionally secured in fixed relationto-the spindle 26 and m'nute arbor 27 and turns therewith.

Suppose for instance that the lug 28 has beena'djusted into the in Fig. 1. quired to make alhalf revolution in the direction of the arrow 44 before the lug 28 is engaged with'the arm 29, which latterprojects into the-path ofv movement of.

said lug, and as a result one half hour will elapse before the lug 28 engages'the arm 29 slide bar 10- upward into. its inoperative position shown in Fig. 2, thereby withdrawing thehead' '16 from engagement with the arm I) and releasing the striker or alarm mechanism, which imme diately resumes its operation and sounds the If for instance, the

portion of one hour, he would turii' the sleeve 25 so as to adjust the lug 28 with relation to the arm 29, so that the-desired length 28 will be engaged with the arm 29 and the f of time will elapse before the lug alarm released. The slide bar '10 may be "i frictionallyheld in its inoperative position,

as ,bya spring 45 which engages therewith. I have 0 the inventiombut it is not desired to limit position represented lnithis case, the sleeve25 is rewith anism to become active and sound the alarm operating herein shown one embodiment of the invention to the particular construction shown. Y i

Claims: 1. The combination with an alarm clock provided with an alarm mechanism and with a time mechanism, of a vibrating arm movable with the alarm mechanism of the clock a stop mechanism movable into and out 0 the path of. movement of said arm to control the operation of the alarm mechanism and prevent the alarm being'sounded by the engagement of the stop mechanism with said 2. The combination with an alarm clock provided with an alarm mechanism and with a time mechanism, of a vibrating arm movable with the alarm mechanism of theclock, a stop mechanism movable into and out of the path of and prevent the alarm being sounded by the engagement of the stop mechanism with said arm and to permit the alarm mechanism to become active and sound the alarm by the disengagement of said stop mechanism from said arm, and a release mechanism-actuated by and movable with. the time mechanism of the clock. and adjustable by the operator movement of said army to control the operation of the alarm mechanism with relation to the time mechanism to disengage the stop mechanism fromfthe said arm at a time'selected by the operator.

4 3. The combination with an alarm clock provided with an alarm mechanism and with a time mechanism having a minute hand mounted upon an arbor, movable with the alarm mechanism of the clock, a stop mechanism movable into and out of the path of movement of said arm to control the operation of the alarm mechanism and prevent the alarm beingsounded of a vibrating arm,

bythe engagement of the stop mechanism said arm and to'cause the alarmmechby thedisengagement of said stop mechanism from said'arm, and a nism mounted on the arbor of the minute hand of the clock to rotate therewith and co with the stop mechanism to move the same, substantially as described.

4. The combinationwith-an alarm. clock -provided with alarm mechanism and with a time mechanism,

the'alarm nechanism of the clock, a stop.

of a device movable with mechanism-cotiperating with said device to release, mecha.-.

nae

permit the alarm mechanism to become audi-- le" andto render it inaudible, said stop mechanism being movable by the operator to render the'alarm inaudible, and means arm, and a release mechanism Comprising actuated by the clock and cooperating with a sleeve movable with the time mechanism the wp mechanism to mov th am nd of the clock and having -a lug which 00- 15 permit the alarm mechanism to become audioperates with the second arm on said slid- 5 ble, substantially as described ing bar, substantially as described.

5. The combination with an alarm clock In testimony whereof, I have signed my provided with an alarm mechanism and with name to this specification in the presence at time mechanism, of a device movable with of two subscribing witnesses. the alarm mechanism of the clock, a stop. CHESTER W. COOK.

l mechanism comprising a sliding bar having Wi-tnessesz' an arm provided with a head cooperating JAs. H. CHURCHILL, with said device, said bar-having a second 'J.-MURPHY. 

